Lina matches half-wits with Diol, a sorcerer who wants to incorporate her into the three-headed monster he's making. He's not much of an opponent until he produces 10 doppelgängers of Naga, complete with her grating laugh.
Naga and Lina are hired to help a nerdish boy win his spurs in "Jeffrey's Knighthood." Their tutoring turns out to be completely unnecessary as Jeffrey's mother, Ms. Josephine, is a one-woman war machine capable of flattening any foe.
In "Mirror, Mirror," the enchanted looking glass of a fabled sorcerer backfires on a would-be thief: it produces versions of Lina and Naga that are mirror images of them psychologically--cute, cowering, and helpful.